QueueDecisionHandlerMtp.java

package matrixtieparent;

import hudson.Extension;
import hudson.model.Action;
import hudson.model.Queue.Task;
import hudson.model.Queue.QueueDecisionHandler;
import java.util.List;
import java.io.IOException;
import hudson.matrix.MatrixProject;
import hudson.model.Label;
import hudson.tasks.BuildWrapper;

/**
 * Maybe assign a Label to limit where the parent
 * build for a Matrix project may run.
 *
 * @author Ken Bertelson
 */
@Extension
public class QueueDecisionHandlerMtp extends QueueDecisionHandler {
    
    @Override
    public boolean shouldSchedule(Task p, List<Action> actions) {
        if (p instanceof MatrixProject) {
            MatrixProject projectParent = (MatrixProject)p;
            for (BuildWrapper bw : projectParent.getBuildWrappers().values()) {
                if (bw instanceof BuildWrapperMtp) {
                    BuildWrapperMtp bwMtp = (BuildWrapperMtp)bw;
                    Label labelMtp = new Label(bwMtp.getLabelName());

                    try {
                        projectParent.setAssignedLabel(labelMtp);
                    } catch (IOException e) {
                        e.printStackTrace();
                    }
                }
            }
        }
        return true;
    }
}